Update sport selection options in app.py to include NHL

- Added 'NHL' to the sport selection dropdown, expanding user choices and enhancing the versatility of the application.

app.py

@@ -83,7 +83,7 @@ with tab1:
         with search_options:
             parse_type = st.selectbox("Manual upload or DB search?", ['Manual', 'DB Search'], key='parse_type')
         with sport_options:
-            sport_select = st.selectbox("Select Sport", ['MLB', 'MMA', 'GOLF', 'NBA'], key='sport_select')
+            sport_select = st.selectbox("Select Sport", ['MLB', 'MMA', 'GOLF', 'NBA', 'NHL'], key='sport_select')
             type_var = st.selectbox("Select Game Type", ['Classic', 'Showdown'], key='type_var')
             contest_names, curr_info = grab_contest_names(db, sport_select, type_var)